Exercise 9-24 (LO9-4) 17 A processor of carrots cuts the green top off each carr

Question

Exercise 9-24 (LO9-4) 17 A processor of carrots cuts the green top off each carrot, washes the carrots, and inserts six to a package. Twenty packages are inserted in a box for shipment. Each box of carrots should weigh 20.4 pounds. The processor knows that the standard deviation of box weight is 0.5 pound. The processor wants to know if the current packing process meets the 20.4 weight standard. How many boxes must the processor sample to be 95% confident that the estimate of the population mean is within 0.2 pound? (Round up your answer to the next whole number.) 1.25 points eBook Ask References Reference links

Explanation / Answer

solution:-

n = [z*s/E]^2

n = [1.96 *0.5 / 0.2]^2

n = [4.9] ^2

n = 24.01
n = 25

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